PMC0402-300 Ferrite Bead Equivalent & Substitute Parts

Part Overview

The PMC0402-300 is a 30 Ohm ferrite bead in 0402 (1005 Metric) surface mount package rated for 300mA maximum current with 200mOhm DC resistance. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain flexibility for applications requiring 30 Ohm impedance ferrite beads at 100 MHz in compact 0402 form factors.

Key Parameters

Parameter	Value
Impedance @ 100 MHz	30 Ohms
Package / Case	0402 (1005 Metric)
Current Rating (Max)	300mA
DC Resistance (Max)	200mOhm
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Surface Mount
Number of Lines	1
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter alignment with the main part PMC0402-300:

Direct Electrical Equivalents (30 Ohms @ 100 MHz, 300mA, 200mOhm DCR):

MU1005-300Y (Bourns Inc.)
BMC1EY0030AN (TE Connectivity Passive Product)
FB100505T-300Y-S (Cal-Chip Electronics, Inc.)
FCM 1005KF-300T03 (TAI-TECH Advanced Electronics Co., Ltd.)

Parametric Equivalents with Tolerance Variations:

7427927130 (Würth Elektronik): 30 Ohms @ 100 MHz, 300mA, 150mOhm DCR (lower DCR)
ACML-0402-310-T (Abracon LLC): 31 Ohms @ 100 MHz, 300mA, 200mOhm DCR (±1 Ohm impedance)
BBSJ00100505300Y00 (Pulse Electronics): 30 Ohms @ 100 MHz, 500mA, 200mOhm DCR (higher current rating)
BBSY00100505300Y00 (Pulse Electronics): 30 Ohms @ 100 MHz, 500mA, 200mOhm DCR (higher current rating)
BBSY00100505320Y00 (Pulse Electronics): 32 Ohms @ 100 MHz, 500mA, 200mOhm DCR (±2 Ohm impedance, higher current)
BBSY00100505330Y00 (Pulse Electronics): 33 Ohms @ 100 MHz, 500mA, 200mOhm DCR (±3 Ohm impedance, higher current)

Substitution eligibility is determined by matching impedance at 100 MHz, package dimensions, operating temperature range, and current rating requirements. Parts with higher current ratings or lower DCR values are suitable for applications with less stringent requirements. Parts with impedance variations of ±1 to ±3 Ohms are acceptable where impedance tolerance permits.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DC Resistance (Max)	Height (Max)	Product Status	RoHS Status
PMC0402-300	Bourns Inc.	30 Ohms	300mA	200mOhm	0.020" (0.50mm)	Obsolete	RoHS non-compliant
MU1005-300Y	Bourns Inc.	30 Ohms	300mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
7427927130	Würth Elektronik	30 Ohms	300mA	150mOhm	0.022" (0.55mm)	Obsolete	ROHS3 Compliant
ACML-0402-310-T	Abracon LLC	31 Ohms	300mA	200mOhm	0.026" (0.65mm)	Active	ROHS3 Compliant
BBSJ00100505300Y00	Pulse Electronics	30 Ohms	500mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
BBSY00100505300Y00	Pulse Electronics	30 Ohms	500mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
BBSY00100505320Y00	Pulse Electronics	32 Ohms	500mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
BBSY00100505330Y00	Pulse Electronics	33 Ohms	500mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
BMC1EY0030AN	TE Connectivity Passive Product	30 Ohms	300mA	200mOhm	0.024" (0.60mm)	Active	ROHS3 Compliant
FB100505T-300Y-S	Cal-Chip Electronics, Inc.	30 Ohms	300mA	200mOhm	0.024" (0.60mm)	Active	RoHS Compliant
FCM 1005KF-300T03	TAI-TECH Advanced Electronics Co., Ltd.	30 Ohms	300mA	200mOhm	0.024" (0.60mm)	Active	RoHS Compliant

Engineering Selection Recommendations

For RoHS Compliance Requirements: Select from active product status parts with ROHS3 Compliant certification: MU1005-300Y, ACML-0402-310-T, BBSJ00100505300Y00, BBSY00100505300Y00, BBSY00100505320Y00, BBSY00100505330Y00, or BMC1EY0030AN. These parts meet current regulatory requirements and ensure long-term supply availability.

For Direct Electrical Match (30 Ohms, 300mA, 200mOhm): MU1005-300Y, BMC1EY0030AN, FB100505T-300Y-S, and FCM 1005KF-300T03 provide exact electrical parameter alignment with the original PMC0402-300. MU1005-300Y and BMC1EY0030AN are recommended as primary choices due to active product status and ROHS3 compliance.

For Higher Current Applications (500mA): BBSJ00100505300Y00 and BBSY00100505300Y00 offer identical 30 Ohm impedance with doubled current rating, suitable for applications requiring additional current margin. These parts are active and ROHS3 compliant.

For Impedance Tolerance Flexibility: ACML-0402-310-T (31 Ohms) and BBSY00100505320Y00 (32 Ohms) or BBSY00100505330Y00 (33 Ohms) are acceptable where circuit design permits ±1 to ±3 Ohm impedance variation. All are active products with ROHS3 compliance.

For Lower DC Resistance: 7427927130 from Würth Elektronik provides 150mOhm DCR versus 200mOhm, reducing power dissipation. Note this part is obsolete status despite ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher impedance (31, 32, or 33 Ohms) instead of exactly 30 Ohms?

A: Substitution with ±1 to ±3 Ohm impedance variation is permissible only if circuit design specifications allow impedance tolerance. Verify impedance requirements in your application schematic before selecting parts like ACML-0402-310-T, BBSY00100505320Y00, or BBSY00100505330Y00.

Q: What is the difference between parts rated 300mA and 500mA?

A: Current rating indicates maximum continuous current the ferrite bead can handle. Parts rated 500mA (BBSJ00100505300Y00, BBSY00100505300Y00, BBSY00100505320Y00, BBSY00100505330Y00) provide higher current capacity than 300mA parts. Use 500mA rated parts only if your application requires currents exceeding 300mA or if you need additional design margin.

Q: Are there height differences between substitute parts?

A: Yes. The original PMC0402-300 has maximum height of 0.020" (0.50mm). Most substitutes are 0.024" (0.60mm), with ACML-0402-310-T at 0.026" (0.65mm) and 7427927130 at 0.022" (0.55mm). Verify PCB layout clearance before selecting parts with different heights.

Q: Which substitute parts are currently in active production?

A: Active product status parts include MU1005-300Y, ACML-0402-310-T, BBSJ00100505300Y00, BBSY00100505300Y00, BBSY00100505320Y00, BBSY00100505330Y00, BMC1EY0030AN, FB100505T-300Y-S, and FCM 1005KF-300T03. Avoid obsolete parts (PMC0402-300 and 7427927130) for new designs.

Q: What does RoHS compliance mean for ferrite bead selection?

A: ROHS3 Compliant parts meet current Restriction of Hazardous Substances regulations and are suitable for applications subject to environmental compliance requirements. RoHS non-compliant parts (PMC0402-300) may not be acceptable for regulated markets or new product designs.

Q: Can I substitute based on DC resistance alone?

A: No. DC resistance is one parameter among several. Impedance at 100 MHz, current rating, package dimensions, and operating temperature must all match or be compatible with your application requirements. Use the Parameter Comparison table to verify all relevant specifications.

Q: What packaging formats are available for these substitute parts?

A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel formats. Verify packaging availability with your supplier based on order quantity and assembly requirements.

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